242111023021 has 4 divisors (see below), whose sum is σ = 276698312032. Its totient is φ = 207523734012.

The previous prime is 242111023003. The next prime is 242111023027. The reversal of 242111023021 is 120320111242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 242111023021 - 2¹⁹ = 242110498733 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242111023021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242111023027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17293644495 + ... + 17293644508.

It is an arithmetic number, because the mean of its divisors is an integer number (69174578008).

Almost surely, 2^242111023021 is an apocalyptic number.

It is an amenable number.

242111023021 is a deficient number, since it is larger than the sum of its proper divisors (34587289011).

242111023021 is an equidigital number, since it uses as much as digits as its factorization.

242111023021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34587289010.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 242111023021 its reverse (120320111242), we get a palindrome (362431134263).

The spelling of 242111023021 in words is "two hundred forty-two billion, one hundred eleven million, twenty-three thousand, twenty-one".